Adsorption of Trace Hydrophobic Compounds from Water on Surfactant-Coated Alumina
- 1 October 1992
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 27 (12), 1633-1642
- https://doi.org/10.1080/01496399208029228
Abstract
The adsorption of several hydrophobic organic compounds (HOCs) from water on alumina coated by sodium dodecylsulfate surfactant “hemimicelles” is discussed. This provides a convenient way of concentrating them on a metal oxide solid support such as alumina. Alumina can be subsequently regenerated with a minimum effort such as a change of pH of the aqueous solution. Adsorption studies showed that the partition constants of HOCs with hemimicelles of sodium dodecylsulfate on alumina is linearly related to their octanol-water partition constants. Surfactantcoated alumina was a better adsorption surface for HOCs than natural soils.Keywords
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